Renesas R5F51117AGFL#3A

Overview

R5F51117AGFL#3A from Renesas is a 32-bit RX111 Group microcontroller featuring a 32 MHz CPU core delivering 50 DMIPS, 384 KB on-chip flash memory, 64 KB SRAM, and 8 KB data flash with 1M erase/write cycles. It integrates USB 2.0 full-speed host/function/OTG, 12-bit A/D (14 channels), 8-bit D/A (2 channels), RTC, and operates from −40 to +105°C in a 48-pin LFQFP package.

For engineers reviewing the R5F51117AGFL#3A datasheet, R5F51117AGFL#3A pinout, R5F51117AGFL#3A application, or R5F51117AGFL#3A equivalent, key selection criteria include USB OTG support with BC compliance, 32 MHz operation at 1.8–3.6 V, software standby mode (0.44 μA), and integrated event link controller for low-power peripheral coordination without CPU wake-up.

Technical Context

The R5F51117AGFL#3A implements a CISC Harvard-architecture RX CPU with five-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32 multiply operations. Its clock system includes high-speed on-chip oscillator (32 MHz ±1% over −20 to +85°C), PLL, sub-clock (32.768 kHz), and CAC for frequency accuracy measurement.

Peripheral integration centers on deterministic real-time control: Event Link Controller (ELC) enables direct module-to-module triggering (e.g., MTU timer → A/D start), Data Transfer Controller (DTC) supports chain transfers across four modes, and MTU2 provides six 16-bit channels with complementary PWM, phase counting, and input capture - all configurable via MPC for flexible pin assignment.

Key Specifications

Pinout & Package

Package: PLQP0048KB-A, 48-pin Low-Profile Quad Flat Package (LFQFP), 7 × 7 mm body, 0.5 mm lead pitch, exposed pad optional per Renesas design guidelines.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F51117AGFL#3A, the R5F51117AGFM#3A provides greater I/O scalability in a larger package, while the R5F51116AGFL#3A reduces memory capacity to lower unit cost - both retain identical USB, A/D, and low-power features for drop-in compatibility within the RX111 family.

Availability

R5F51117AGFL#3A is available at Aetrix Electronics and suitable for industrial motor control, USB-connected instrumentation, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F51117AGFL#3A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX111 Group is designed for cost-sensitive, low-power embedded applications demanding USB connectivity, precision analog integration, and functional safety support - targeting smart appliances, portable tools, and industrial sensors.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F51117AGFL#3A?

The R5F51117AGFL#3A operates at a maximum frequency of 32 MHz when supplied from 2.7 to 3.6 V. At 1.8–2.4 V, max frequency is 8 MHz; at 2.4–2.7 V, it is 16 MHz. This voltage-frequency scaling ensures reliable operation across wide input conditions while minimizing dynamic power consumption in the R5F51117AGFL#3A.

Does the R5F51117AGFL#3A support USB On-The-Go (OTG) functionality?

Yes, the R5F51117AGFL#3A integrates a USB 2.0 host/function module compliant with OTG specification, including ID pin detection (USB0_ID), VBUS monitoring (USB0_VBUS), and BC (Battery Charger) detection. This enables the R5F51117AGFL#3A to dynamically switch between host and device roles in portable applications without external USB switches.

How many A/D converter channels does the R5F51117AGFL#3A provide, and what is its minimum conversion time?

The R5F51117AGFL#3A includes a 12-bit A/D converter with up to 14 input channels (AN000–AN015). Its minimum conversion time is 1.0 μs per channel when the ADCLK runs at 32 MHz. This performance is sustained across all channels in scan mode, making the R5F51117AGFL#3A suitable for high-speed motor current sampling and multi-sensor acquisition.

What low-power modes are available on the R5F51117AGFL#3A, and what is the lowest supply current?

The R5F51117AGFL#3A supports three low-power modes: sleep, deep sleep, and software standby. In software standby mode, supply current drops to 0.44 μA (typical) with 4.8 μs wake-up time. This ultra-low quiescent current is achieved while retaining SRAM content and enabling wake-up via external pins or RTC alarm - critical for battery-backed R5F51117AGFL#3A deployments.

Is the R5F51117AGFL#3A qualified for automotive applications, and what temperature range does it support?

Yes, the R5F51117AGFL#3A is rated for −40 to +105°C operation (G-grade) and includes IEC 60730-compliant features such as clock accuracy measurement (CAC), independent watchdog timer (IWDT), and RAM test assist. These capabilities support ASIL-B diagnostic coverage in automotive body control modules, making the R5F51117AGFL#3A suitable for under-dash and under-hood environments.